This game is essentially a love letter to all 3D platformers of the past.

+Excellent feel of movement, very responsive.
+Stunning visual style.
+Cute and memorable characters.
+Lots of enviornment and gameplay variety.
+Amazing soundtrack.
+Full mod support.
+You can smooch birds.
+Cute as heck.

+- Story is good but doesn't have a lot of depth to it.
+- Can be short to some people.

-Occasional bugs.
-Sometimes wall climbing can be odd and not work the way you want it to.
-Chapter 4 lacks any notable story or characters.

Overall: A great game and it makes me want more, which I got thanks to the DLC.